Prozac -- a drug meant to keep people happy or at least a little less depressed but for fish it's a different tale scientists say the drug makes them anxious anti social and even homicidal. Mail -- exposed to prozac tend to ignore their female counterparts limiting reproduction the species but. How these fish actually getting the -- -- it's simple really it leaks into streams soon it's altering genes responsible for building fish brains and controlling their behavior. Researchers hope to use this information to determine -- the drugs appearance and water will also affect human health.

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